Gravel Calculator

Calculate amount of sand or gravel that is needed to attain a specific depth in a rectangular aquarium

How much sand, gravel or substrate to use

Calculate amount of sand, gravel or substrate required to attain a specific depth (h) in your rectangular aquarium or pond. Enter the aquarium length (l), width (w), Gravel Depth (h), select unit of length measurement and gravel type, and press Calculate button to calculate how much gravel you need, in various units of weight measurement, to attain the specified gravel depth h. The number in square brackets, to the right of the gravel name, is the gravel specific gravity or relative density, as compared to pure water. See also our gravel calculators for quarter cylinder and cylindrical shaped aquariums and ponds.

Gravel weight = (gravel density)× (gravel volume)

Gravel volumeV = l × w × h= 200

centimeter³

3 277.41

inch³

200

foot³

0.12

meter³

0

Calculation Formulas

Gravel weight = (gravel density) × (gravel volume)

Gravel volumeV = l × w × h

Reference

African Cichlid Mix™, Arag-Alive!™, CORALive™, Eco-Complete™, FlorMax™, Instant Aquarium™ OceanDirect™ and Super Naturals™ are products of CaribSea. See CaribSea web site for detailed information about their products. The CaribSea gravels and substrate density information last accessed on 22 August 2014. This site or its parent company AVCalc LLC is NOT affiliated with, funded, or in any way associated with CaribSea.

Gravels and Substrates

CaribSea, Freshwater, Flora Max, Volcano Reddensity is equal to 865 kg/m³ or 54 lb/ft³ with specific gravity of 0.865 relative to pure water. Calculate how much of this gravel is required to attain a specific depth in a cylinder, quarter cylinder or in a rectangular shaped aquarium or pond